Ever since I learned about yarn spun from New Zealand possum fur, I knew I had to have some. Luckily I have a nice friend, currently finishing up a sentence in the land of the kiwi, who was kind enough to be my latest enabler. Thanks Katie!
Edited to add:
This yarn is a possum/merino blend. Supposedly the possums are "hand plucked" which I assume is some sort of non harmful brushing process. The possums are way cuter than the N. American variety, but are an invasive species introduced ~150 years ago.
After more snooping, it looks like they kill the possums before plucking. I'm not a vegetarian though and have leather shoes, so I'm OK with it. I just didn't want to mislead anybody.